Spinal schwannoma - thoracic

Case contributed by Frank Gaillard
Diagnosis certain
mri
This study is a stack
Axial T1
C+ fat sat
This study is a stack
Sagittal T1
C+ fat sat
This study is a stack
Sagittal STIR
& T2 & T1
This study is a stack
Axial
T1
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Info

There is an extramedullary, intradural lesion, of lows T1 and high T2 signal, which is vividly, but heterogenously enhancing on post contrast images. 

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Case Discussion

Final Diagnosis:

Intradural T9-T10 tumor, resection: Schwannoma.

Gross Description:

The specimen [..] consists of a smooth-surfaced pink-yellowish nodule measuring 2 X 1.4 X 0.8 cm.

Microscopic Description:

[...] neoplasm with the typical histologic features of schwannoma. The tumor cells are arranged in compact, interlacing bundles in the Antoni type A areas and in a more loose fashion in the Antoni type B areas. There is focal formation of Verocay bodies. Scattered throughout are thick-wall hyalinized blood vessels. Within the center of the neoplasm there are variably dilated cystic spaces, some of which contain blood. The tumor is well circumscribed and surrounded by a compressed fibrous tissue pseudocapsule.

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